Romans 16:17 “Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.”
The Apostle Paul wrote, as an instrument of the Holy Spirit, that Christians are to avoid some people. There are many kinds of Christians – as there has always been – but some of them are not going to help you serve God or live a holy life.
Paul says that when that happens, it is best just to avoid them. They will hurt your joy, ruin your day, and possibly rob you of the power you need for victory.
There are two kinds of people that Paul mentions in this verse: those who cause divisions, and those who are offensive. Some people always want to talk about their pet doctrine – which they know that others disagree with. It causes church splits, people to be hurt and leave the church, etc.
Certainly, we are to pray for them, but we must also be wary of them. Such people, if they fight against Biblical doctrines, are not of God. Do not even listen to them, so that they do not convince you of false doctrine and you also become a destroyer of unity in the church.